Wi-Fi framework for P2P in android

1.Settings (packages/apps/Settings)
2.Wi-Fi service framework (frameworks/base/wifi/java/android/net/wifi, frameworks/base/services/java/com/android/server)
3.Wi-Fi HAL (hardware/libhardware_legacy/wifi)
4.wpa_supplicant_8 (external/wpa_supplicant_8)
5.netlink library (external/libnl_2)
6.nl80211/cfg80211 driver